FI69778C - Flerskiktsfilm och foerfarande foer framstaellning av filmen - Google Patents
Flerskiktsfilm och foerfarande foer framstaellning av filmen Download PDFInfo
- Publication number
- FI69778C FI69778C FI791794A FI791794A FI69778C FI 69778 C FI69778 C FI 69778C FI 791794 A FI791794 A FI 791794A FI 791794 A FI791794 A FI 791794A FI 69778 C FI69778 C FI 69778C
- Authority
- FI
- Finland
- Prior art keywords
- film
- copolymer
- film according
- homopolymer
- whose
- Prior art date
Links
- 229920000642 polymer Polymers 0.000 claims description 39
- 239000010410 layer Substances 0.000 claims description 37
- -1 polybutylene Polymers 0.000 claims description 36
- 239000012792 core layer Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 27
- 239000004743 Polypropylene Substances 0.000 claims description 20
- 229920001748 polybutylene Polymers 0.000 claims description 16
- 229920001519 homopolymer Polymers 0.000 claims description 14
- 229920000098 polyolefin Polymers 0.000 claims description 14
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 11
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 3
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005042 ethylene-ethyl acrylate Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 2
- 238000003825 pressing Methods 0.000 claims 1
- 239000010408 film Substances 0.000 description 105
- 230000000704 physical effect Effects 0.000 description 27
- 239000002356 single layer Substances 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 6
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- HLWRUJAIJJEZDL-UHFFFAOYSA-M sodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetate Chemical compound [Na+].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC([O-])=O HLWRUJAIJJEZDL-UHFFFAOYSA-M 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000001692 EU approved anti-caking agent Substances 0.000 description 1
- 240000007930 Oxalis acetosella Species 0.000 description 1
- 235000008098 Oxalis acetosella Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- CGPRUXZTHGTMKW-UHFFFAOYSA-N ethene;ethyl prop-2-enoate Chemical class C=C.CCOC(=O)C=C CGPRUXZTHGTMKW-UHFFFAOYSA-N 0.000 description 1
- 229920006379 extruded polypropylene Polymers 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2331/00—Polyvinylesters
- B32B2331/04—Polymers of vinyl acetate, e.g. PVA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2333/00—Polymers of unsaturated acids or derivatives thereof
- B32B2333/04—Polymers of esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/02—Open containers
- B32B2439/06—Bags, sacks, sachets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Materials For Medical Uses (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Claims (16)
1. Flerskiktsfilm som lämpar sig för framställning av avfallssäckar och vars skikt är samextruderade, vilken film har ett första yttre skikt av en första extruderad värmeförseglingsbar polyolefin, ett andra yttre skikt av en andra extruderad värmeförseglingsbar polyolefin, och ett extruderat kärnskikt, som innehaller polypropylen-polymer, kännetecknad därav, att kärnskiktet omfattar en blandning av polybutylenhomopolymer, vars flytbarhetsindex är ca 0,4...ca 10,0 dg/min, och polypropylenhomopolymer eller -sampoly-mer, vars flytbarhetsindex är ca 0,5...ca 15,0 dg/min.
2. Film enligt patentkravet 1, kännetecknad därav, att den ena av sagda polyolefiner är polyetylen, vars täthet är 0,916...0,962 g/cm3 och vars flytbarhetsindex är 0,1...10,0 dg/min.
3. Film enligt patentkravet 2, kännetecknad därav, att polyetylenets täthet är 0,916...0,930 g/cm^ och dess flytbarhets-index 0,1...6,0 dg/min.
4. Film enligt patentkravet 1, kännetecknad därav, att ätminstone den ena av polyolefinerna är en sampolymer av etylenetyl-akrylat eller etylenvinyliacetat, vars komonomerhalt är ca l...ca 30 vikt-%, och vars flytbarhetindex är ca 0,3...ca 10,0 dg/min. 18 69778
5. Film enligt patentkravet 4, kännetecknad därav, att sampolymerens komonomerhalt är ca l...ca 20 vikt-% och flytbarhets-index är ca 0,3...ca 5,0 dg/min.
6. Film enligt patentkravet 1, kännetecknad därav, att polypropylenhomopolymerens eller -sampolymerens täthet är ca 0,89...ca 0,91 g/cm3.
7. Film enligt patentkravet 1, kännetecknad därav, att polybutylen homopolymerens täthet är ca 0,90...ca 0,92 g/cm3.
8. Film enligt patentkravet 1, kännetecknad därav, att blandningen innehällerca 10...ca 90 vikt-% polybutylenhomopolymer och ca 90...ca 10 vikt-% polypropylenhomopolymer eller -sampolymer.
9. Film enligt patentkravet 1, kännetecknad därav, att polybutylenhomopolymerens och polypropylenhomopolymerens eller -sampolymerens viktförhällande är ca l:2...ca 2:1.
10. Film enligt patentkravet 9, kännetecknad därav, att viktförhällandet är ca 1:1.
11. Förfarande för framställning av en flerskiktsfilm, varvid tre separata sprutpressar mätäs med respektive första och andra varme-förseglingsbar polyolefin och en polypropylen innehällande bland-ning, varvid varje sprutpress matar en separat kanal i ett fler-skiktsmunstycke och pressar genom en enda munstycksspringa en fler-skiktsfilm, med första och andra ytterskikt av nämnda första och andra polyolefin, och ett kärnskikt av nämnda blandning, känne-t e c k n a t därav, att man som kärnskikt sprutpressar en blandning av polybutylenhomopolymer, vars flytbarhetsindex är ca 0,4... ca 10,0 dg/min, och polypropylenhomopolymer eller -sampolymer, vars flytbarhetsindex är ca 0,5...ca 15,0 dg/min.
12. Förfarande enligt patentkravet 11, kännetecknat därav, att man sprutpressar en blandning vars polypropylenhomopolymer eller -sampolymer har en täthet om ca 0,89...ca 0,91 g/cm3 och ett flytbarhetsindex om ca 0,5...ca 15,0 dg/min.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US91985278 | 1978-06-28 | ||
| US05/919,852 US4169910A (en) | 1978-06-28 | 1978-06-28 | Multilayer film including polyolefin layers and a polybutylene layer useful for the production of bags |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI791794A FI791794A (fi) | 1979-12-29 |
| FI69778B FI69778B (fi) | 1985-12-31 |
| FI69778C true FI69778C (fi) | 1986-05-26 |
Family
ID=25442747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI791794A FI69778C (fi) | 1978-06-28 | 1979-06-05 | Flerskiktsfilm och foerfarande foer framstaellning av filmen |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US4169910A (sv) |
| JP (1) | JPS555891A (sv) |
| AT (1) | ATA403479A (sv) |
| AU (1) | AU528974B2 (sv) |
| BE (1) | BE876774A (sv) |
| CA (1) | CA1156812A (sv) |
| CH (1) | CH640179A5 (sv) |
| DE (1) | DE2921745A1 (sv) |
| DK (1) | DK231679A (sv) |
| FI (1) | FI69778C (sv) |
| FR (1) | FR2434034A1 (sv) |
| GB (1) | GB2025847B (sv) |
| IE (1) | IE48575B1 (sv) |
| IT (1) | IT1117797B (sv) |
| MX (1) | MX151018A (sv) |
| NL (1) | NL7904396A (sv) |
| NO (1) | NO791822L (sv) |
| NZ (1) | NZ190641A (sv) |
| SE (1) | SE7904789L (sv) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1178414A (en) * | 1978-02-08 | 1984-11-27 | Toyo Boseki Kabushiki Kaisha (Trading Under The Name Of Toyobo Co., Ltd.) | Packaging material having excellent seal packaging property |
| US4229241A (en) * | 1978-12-04 | 1980-10-21 | W. R. Grace & Co. | Process for making a multi layer polyolefin shrink film |
| US4456660A (en) * | 1978-12-13 | 1984-06-26 | Mobil Oil Corporation | Coextruded two-ply laminate films of low density polyethylene and blend of polybutene-1 and polyethylene or polypropylene |
| US4364981A (en) * | 1979-12-28 | 1982-12-21 | Union Carbide Corporation | Three layer film having a core layer of low pressure, low density polyethylene |
| US4316970A (en) * | 1980-08-01 | 1982-02-23 | Shell Oil Company | Blends of butene-1-ethylene copolymer and polypropylene |
| US4322465A (en) * | 1980-08-08 | 1982-03-30 | Baxter Travenol Laboratories, Inc. | Clear, autoclavable, sealed container having good water vapor barrier properties and flex crack resistance |
| US4391862A (en) * | 1981-07-02 | 1983-07-05 | W. R. Grace & Co., Cryovac Division | Pasteurizable thermoplastic film and receptacle therefrom |
| US4354004A (en) * | 1981-09-28 | 1982-10-12 | Shell Oil Company | Film compositions from olefin polymer blends |
| US4488924A (en) * | 1981-12-10 | 1984-12-18 | Mobil Oil Corporation | Method of sealing laminar thermoplastic films and bags |
| JPS58160147A (ja) * | 1982-03-18 | 1983-09-22 | 三井化学株式会社 | 共押出多層フイルム |
| US4528220A (en) * | 1984-02-09 | 1985-07-09 | Shell Oil Company | Plastic bags for medical solutions and blood |
| IE56700B1 (en) * | 1984-11-30 | 1991-11-06 | Canadian Ind | Thermoplastic sacks |
| US4965108A (en) * | 1985-09-11 | 1990-10-23 | First Brands Corporation | Low temperature impact and puncture resistant thermoplastic films and bags therefrom |
| US5093164A (en) * | 1985-11-29 | 1992-03-03 | Bauer Frank T | Multiple layer packaging sheet material |
| US4966795A (en) * | 1985-11-29 | 1990-10-30 | American National Can Company | Multiple layer sheet structures and package |
| US4778697A (en) * | 1985-11-29 | 1988-10-18 | American National Can Company | Polymeric films |
| US5011719A (en) * | 1985-11-29 | 1991-04-30 | American National Can Company | Polymeric compositions and films |
| US5035851A (en) * | 1986-11-25 | 1991-07-30 | W. R. Grace & Co.-Conn. | Method of making very high barrier film |
| US4965109A (en) * | 1987-03-09 | 1990-10-23 | First Brands Corporation | Low temperature impact and puncture resistant polypropyene films layered films and bags therefrom |
| EP0504808B1 (en) * | 1991-03-20 | 1998-09-09 | Kuraray Co., Ltd. | Multi-layer construction film and method for producing same |
| US6524720B1 (en) | 1992-09-18 | 2003-02-25 | Cryovac, Inc. | Moisture barrier film |
| CA2106258C (en) | 1992-09-18 | 2003-11-04 | Gautam P. Shah | Moisture barrier film |
| US7316833B1 (en) | 1993-06-24 | 2008-01-08 | Penchiney Emballage Flexible Europe | Multi-layer thermoplastic films and packages made therefrom |
| US6017832A (en) * | 1996-09-04 | 2000-01-25 | Kimberly-Clark Worldwide, Inc. | Method and composition for treating substrates for wettability |
| US6296936B1 (en) | 1996-09-04 | 2001-10-02 | Kimberly-Clark Worldwide, Inc. | Coform material having improved fluid handling and method for producing |
| US6204208B1 (en) | 1996-09-04 | 2001-03-20 | Kimberly-Clark Worldwide, Inc. | Method and composition for treating substrates for wettability and skin wellness |
| US6072005A (en) * | 1997-10-31 | 2000-06-06 | Kimberly-Clark Worldwide, Inc. | Breathable films and process for producing them |
| DE19806475A1 (de) * | 1998-02-17 | 1999-08-19 | Wolff Walsrode Ag | Mehrlagige Siegelschicht und damit hergestellte hermetisch versiegelbarer Packstoff |
| US6869666B2 (en) | 2001-05-02 | 2005-03-22 | 3M Innovative Properties Company | Controlled-puncture films |
| US20060285783A1 (en) * | 2006-06-01 | 2006-12-21 | Burnett John A Jr | Fluorescent buld disposal bag |
| JP6315798B2 (ja) * | 2014-06-27 | 2018-04-25 | サン・トックス株式会社 | 多層シーラントフィルム |
| EP4130875A4 (en) | 2020-03-26 | 2024-04-17 | TOYOBO MC Corporation | ORIGINAL LIGHT-SENSITIVE RESIN PRINTING PLATE FOR TYPOGRAPHIC PRINTING |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE561516A (sv) * | 1956-10-11 | |||
| US3524795A (en) * | 1965-07-01 | 1970-08-18 | Dow Chemical Co | Packaging film |
| US3891008A (en) * | 1973-12-26 | 1975-06-24 | Grace W R & Co | Multi-layer thermoplastic film and method of making same |
| US4046945A (en) * | 1974-01-18 | 1977-09-06 | Chemische Werke Huls Aktiengesellschaft | Process for the bonding of films and molded components |
| US3997383A (en) * | 1975-03-10 | 1976-12-14 | W. R. Grace & Co. | Cross-linked amide/olefin polymeric laminates |
| GB1497577A (en) * | 1975-06-11 | 1978-01-12 | Ici Ltd | Film-forming olefin polymer compositions |
-
1978
- 1978-06-28 US US05/919,852 patent/US4169910A/en not_active Expired - Lifetime
-
1979
- 1979-05-29 DE DE19792921745 patent/DE2921745A1/de not_active Withdrawn
- 1979-05-29 CA CA000328571A patent/CA1156812A/en not_active Expired
- 1979-05-31 NO NO791822A patent/NO791822L/no unknown
- 1979-05-31 SE SE7904789A patent/SE7904789L/sv not_active Application Discontinuation
- 1979-06-01 DK DK231679A patent/DK231679A/da not_active Application Discontinuation
- 1979-06-04 IT IT4929479A patent/IT1117797B/it active
- 1979-06-05 BE BE0/195573A patent/BE876774A/xx not_active IP Right Cessation
- 1979-06-05 JP JP7050779A patent/JPS555891A/ja active Pending
- 1979-06-05 GB GB7919525A patent/GB2025847B/en not_active Expired
- 1979-06-05 NL NL7904396A patent/NL7904396A/nl not_active Application Discontinuation
- 1979-06-05 FR FR7914292A patent/FR2434034A1/fr active Granted
- 1979-06-05 FI FI791794A patent/FI69778C/fi not_active IP Right Cessation
- 1979-06-05 CH CH523579A patent/CH640179A5/fr not_active IP Right Cessation
- 1979-06-05 NZ NZ19064179A patent/NZ190641A/xx unknown
- 1979-06-05 MX MX177941A patent/MX151018A/es unknown
- 1979-06-05 AT AT403479A patent/ATA403479A/de not_active IP Right Cessation
- 1979-06-07 AU AU47858/79A patent/AU528974B2/en not_active Ceased
- 1979-08-08 IE IE1102/79A patent/IE48575B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH640179A5 (fr) | 1983-12-30 |
| FR2434034B1 (sv) | 1984-04-06 |
| FR2434034A1 (fr) | 1980-03-21 |
| NL7904396A (nl) | 1980-01-03 |
| AU4785879A (en) | 1980-01-03 |
| NZ190641A (en) | 1981-03-16 |
| CA1156812A (en) | 1983-11-15 |
| NO791822L (no) | 1980-01-02 |
| DK231679A (da) | 1979-12-29 |
| IE48575B1 (en) | 1985-03-06 |
| FI791794A (fi) | 1979-12-29 |
| US4169910A (en) | 1979-10-02 |
| DE2921745A1 (de) | 1980-01-03 |
| IT7949294A0 (it) | 1979-06-04 |
| ATA403479A (de) | 1986-02-15 |
| GB2025847A (en) | 1980-01-30 |
| AU528974B2 (en) | 1983-05-19 |
| BE876774A (fr) | 1979-12-05 |
| IT1117797B (it) | 1986-02-24 |
| JPS555891A (en) | 1980-01-17 |
| MX151018A (es) | 1984-09-07 |
| IE791102L (en) | 1979-12-28 |
| FI69778B (fi) | 1985-12-31 |
| SE7904789L (sv) | 1979-12-29 |
| GB2025847B (en) | 1983-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: UNION CARBIDE CORP |